<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style >
    *{
        margin:0;
        padding:0;
    }


    </style>
</head>
<body>
   <div class="p">
        <p>p1</p>
        <div>
             <p>p2</p>
        </div>

        <p>p3</p>

   </div>
   <p>
       p188

   </p>
</body>
</html>